Transformation and Agronomic Use of Nutrients From Digester Effluent

Table of Contents

Anaerobic Digestion Nutrient Transformations

Anaerobic digestion (AD) is the process in which organic compounds are broken down by naturally occurring bacteria, including methanogenic microorganisms under oxygen free conditions, transforming organic matter into biogas (methane (CH4), carbon dioxide (CO2), water vapor, ammonia, and hydrogen sulfide) (Dugba and Zhang, 1999; AgSTAR, 2010b).…

Separation Technologies for Capturing Nutrients from Manure

Exporting phosphorus and possibly nitrogen from larger livestock operations as well as regions of large livestock populations is often essential for protecting water quality. Solids (and nutrient) separation technologies are an option for concentrating nutrients for export. This webinar introduces three approaches to solids separation that are being applied in commercial settings.…

Linking Feed Management to Whole Farm Nutrient Management

Nutrients in feed is the primary source of Nitrogen, Phosphorus, and Potassium that is imported to livestock and poultry farms. This webcast highlights a decision aid tool that follows the nutrients in feed all the way to the land application of manure for crop production. This presentation was originally broadcast on October 17, 2014.…